I prefer the older prw ring sets - Leupold PRW Weaver Style Rings

Leupold changed the design a bit which allows one to easily place the top ring cap on the scope body. However, the ring cap screw holes don't quite line up with their corresponding holes in their bases. This results in a tedious procedure to get the screws lined up and started in their holes. Whereas the original PRW's required you to spread the upper ring a bit to get it over the scope body, but the holes lined up perfectly making inserting the screws effortless.
So I searched for the older model and found them priced less than the new model at Optics.